Australian Electoral Commission (AEC) staff have called police to a pre-polling booth in Canberra after an altercation between Liberal candidate Mina Zaki and a Labor volunteer.

Key points:

Liberal candidate Mina Zaki referred to a Labor volunteer as a "dog"

Incident occurred after tensions boiled over at a pre-poll booth

Police were called by Australian Electoral Commission staff

Officials for the AEC reported the incident to police after Ms Zaki, who is running in the seat of Canberra, told Labor Senate candidate Katy Gallagher to "put a leash on your dog", referring to a volunteer who was campaigning outside a polling booth in Canberra's inner-north.

Earlier Ms Zaki had confronted Ms Gallagher to complain about the volunteer's tactics.

Before she left the pre-polling station Ms Zaki was recorded yelling at Ms Gallagher.

"Will you take some responsibility for once in your life and actually do something Katy," she said, calling for the volunteer to be disciplined.

A voter in line at the polling station interjected, yelling at Ms Zaki to "grow up and leave Katy alone".

About six witnesses who were present also spoke to police when they arrived.

A police spokesman said while officers attended, "no offences were identified, and at this time no further police action is anticipated".